Analysis
HTS 2711.14.00 covers ethylene, propylene, butylene and butadiene under heading 2711 (petroleum gases and other gaseous hydrocarbons). US Customs collects import statistics for it under 4 ten-digit suffixes, reported in kilograms.
There is no general-rate duty on this line, which puts it with roughly 89% of the 46 tariff lines in chapter 27 that are also free. Duty-free at the general rate does not rule out additional duties under Chapter 99, such as Section 301 or Section 232 measures, which depend on the country of origin.
Census statistics map these goods to NAICS 325110 (Petrochemical Manufacturing), an industry of 76 US establishments employing 10,888 people, the industry a domestic producer of these goods reports under.
The ten-digit suffixes separate ethylene, propylene, butylene and butadiene. The duty is the same across them; the suffix matters for statistics, licensing and some quotas, and an entry needs all ten digits.
All 6 neighbouring lines carry the same duty-free rate, so a borderline choice between them changes the statistics reported, not the duty paid.
Statistical suffixes
Neighbouring lines
| Line | Description | General rate |
|---|---|---|
| 2711.11.00 | Liquefied: natural gas | Free |
| 2711.12.00 | Liquefied: propane | Free |
| 2711.13.00 | Liquefied: butanes | Free |
| 2711.19.00 | Liquefied: other | Free |
| 2711.21.00 | In gaseous state: natural gas | Free |
| 2711.29.00 | In gaseous state: other | Free |